Year % of female population 1960 1.42801750246345 1961 1.47850518369229 1962 1.54905898128031 1963 1.62198763832187 1964 1.69952192316906 1965 1.77682519473941 1966 1.82853478192618 1967 1.8477444308997 1968 1.85147137183236 1969 1.85319135094696 1970 1.85764478858197 1971 1.86859817067817 1972 1.89695463704133 1973 1.95634504363428 1974 2.05246311087159 1975 2.17375890146635 1976 2.31033091694949 1977 2.44681968532202 1978 2.55810862813417 1979 2.64258352321359 1980 2.7100100513857 1981 2.76041215771594 1982 2.79980402998604 1983 2.83960642826729 1984 2.8917885676265 1985 2.95659884628816 1986 3.01822951953034 1987 3.06918660986241 1988 3.09556942724144 1989 3.06112788209353 1990 2.94403627596774 1991 2.75309618761151 1992 2.52850031389127 1993 2.33677286042871 1994 2.23725777215879 1995 2.24735148418862 1996 2.37358659742702 1997 2.6200874937207 1998 2.94403347260045 1999 3.27998958520045 2000 3.59734271225365 2001 3.87597638711223 2002 4.09036983117278 2003 4.24786637601392 2004 4.3638356995813 2005 4.43586383670149 2006 4.45732025480987 2007 4.42635210774309 2008 4.33430570989285 2009 4.20660132428467 2010 4.12655137918986 2011 4.14963630198672 2012 4.24959248432267 2013 4.37566939864489 2014 4.4651203484972 2015 4.44498020456877 2016 4.26846667442532 2017 3.93309849813444 2018 3.52525178829104 2019 3.15271233063 2020 2.88668134656934 2021 2.83111340858307 2022 3.0333903565405 2023 3.43227189138697